Chess South Africa Ratings Database

PLAYER PAGE

Personal

Johnson, M (Michaela)

Chess SA id

2100161526

FIDE id

Date of birth

2010-09-08 (U16)

Gender

Female

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-11-04

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1142.6	1200	1109.1	1200
Raw rating	1142.6	1200	1109.1	1200
Weighted rating	1140.5	1200	1105.9	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	179.9	165.8	188.7	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2019-12-01	1200 2024-03-01	1200 2019-12-01	1200 2024-03-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2019-12-01	1200 2024-03-01	1200 2019-12-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1142.6	1200	1109.1	1200
Analysis
Rating	1142.6	1200	1109.1	1200
Raw rating	1142.6	1200	1109.1	1200
Weighted rating	1140.5	1200	1105.9
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	179.9	165.8	188.7	165.8
Games	0	0	0	0
Score	0	0	0	0
Expected score	0	0	0	0
Score-Expected	0	0	0	0
Temp raw +/-	0	0	0	0
Final raw +/-	0	0	0	0
New raw rating	1142.6	1200	1109.1	1200
New weighted rating	1140.8	1200	1106.3	1200
New weighted performance	0	0	0	0
Temp new rating	1142.6	1200	1109.1	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1142.6	1200	1109.1	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Rapid
	0	0
	0	0
	0	0
	12	12
	0	0
	0	0
History	12	12

Games since
	Main 6	Standard 0		Rapid 6		Blitz 0
Gender	Female
Age group	U16
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1


	Games	Score	%	Dp	AvgOpp	Performance
Main	0	0	0	0	0	0
Standard	0	0	0	0	0	0
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

	Games	Score	%	Dp	AvgOpp	Performance
Main	0	0	0	0	0	0
Standard	0	0	0	0	0	0
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	12	3	25	-212.5	1193.6	981.1
Standard	0	0	0	0	0	0
Rapid	12	3	25	-212.5	1193.6	981.1
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1142.6	1200	1109.1	1200
2025-09-30	1142.6	1200	1109.1	1200
2025-09-01	1142.6	1200	1109.1	1200
2025-08-01	1142.6	1200	1109.1	1200
2025-07-01	1142.6	1200	1109.1	1200
2025-06-01	1142.6	1200	1109.1	1200
2025-05-01	1142.6	1200	1109.1	1200
2025-04-01	1142.6	1200	1109.1	1200
2025-03-01	1142.6	1200	1109.1	1200
2025-02-01	1142.6	1200	1109.1	1200
2025-01-01	1136.7	1200	1099.9	1200
2024-12-01	1136.7	1200	1099.9	1200
2024-11-01	1136.7	1200	1099.9	1200
2024-10-01	1136.7	1200	1099.9	1200
2024-09-01	1136.7	1200	1099.9	1200
2024-08-01	1136.7	1200	1099.9	1200
2024-07-01	1136.7	1200	1099.9	1200
2024-09-01	1136.7	1200	1099.9	1200
2024-05-01	1136.7	1200	1099.9	1200
2024-04-01	1136.7	1200	1099.9	1200
2024-03-01	1136.7	1200	1099.9	1200
2024-02-01	1136.7	1200	1099.9	1200
2024-01-01	1136.7	1200	1099.9	1200
2023-12-01	1136.7	1200	1099.9	1200

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Grant East Primary School Invitational Chess Tournament 2023 (U13 Mixed)	2023-11-04	2023-11-04	Rapid	Cape Town (WCT)	6	6	1	Yes	Analysis
2	Stellenbosch Primary Chess Tournament 2023 (U14)	2023-08-19	2023-08-19	Rapid	Cape Winelands (WCW)	6	6	2	Yes	Analysis

#	Games	Start				End
1	2	Tournament Stellenbosch Primary Chess Tournament 2023				Tournament Stellenbosch Primary Chess Tournament 2023
		date 2023-08-19	rnd 4	type Rapid	result 1	date 2023-08-19	rnd 5	type Rapid	result 1
		Opponent Kemp, R (Rian)				Opponent Jordaan, A (Aj)
2	1	Tournament Grant East Primary School Invitational Chess Tournament 2023				Tournament Grant East Primary School Invitational Chess Tournament 2023
		date 2023-11-04	rnd 3	type Rapid	result 1	date 2023-11-04	rnd 3	type Rapid	result 1
		Opponent Grohban, H (Hendricks Paulo)				Opponent Grohban, H (Hendricks Paulo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Stellenbosch Primary Chess Tournament 2023				Tournament Stellenbosch Primary Chess Tournament 2023
		date 2023-08-19	rnd 4	type Rapid	result 1	date 2023-08-19	rnd 5	type Rapid	result 1
		Opponent Kemp, R (Rian)				Opponent Jordaan, A (Aj)
2	1	Tournament Grant East Primary School Invitational Chess Tournament 2023				Tournament Grant East Primary School Invitational Chess Tournament 2023
		date 2023-11-04	rnd 3	type Rapid	result 1	date 2023-11-04	rnd 3	type Rapid	result 1
		Opponent Grohban, H (Hendricks Paulo)				Opponent Grohban, H (Hendricks Paulo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Stellenbosch Primary Chess Tournament 2023				Tournament Stellenbosch Primary Chess Tournament 2023
		date 2023-08-19	rnd 4	type Rapid	result 1	date 2023-08-19	rnd 5	type Rapid	result 1
		Opponent Kemp, R (Rian)				Opponent Jordaan, A (Aj)
2	1	Tournament Grant East Primary School Invitational Chess Tournament 2023				Tournament Grant East Primary School Invitational Chess Tournament 2023
		date 2023-11-04	rnd 3	type Rapid	result 1	date 2023-11-04	rnd 3	type Rapid	result 1
		Opponent Grohban, H (Hendricks Paulo)				Opponent Grohban, H (Hendricks Paulo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Stellenbosch Primary Chess Tournament 2023				Tournament Stellenbosch Primary Chess Tournament 2023
		date 2023-08-19	rnd 4	type Rapid	result 1	date 2023-08-19	rnd 5	type Rapid	result 1
		Opponent Kemp, R (Rian)				Opponent Jordaan, A (Aj)
2	1	Tournament Grant East Primary School Invitational Chess Tournament 2023				Tournament Grant East Primary School Invitational Chess Tournament 2023
		date 2023-11-04	rnd 3	type Rapid	result 1	date 2023-11-04	rnd 3	type Rapid	result 1
		Opponent Grohban, H (Hendricks Paulo)				Opponent Grohban, H (Hendricks Paulo)

No games found.

#	Games	Start				End

Top 10 opponents most often played

#	Opponent	Main			Standard			Rapid			Blitz
		Gms	Score	Dp	Gms	Score	Dp	Gms	Score	Dp	Gms	Score	Dp
		Gms	Aor	Prat	Gms	Aor	Prat	Gms	Aor	Prat	Gms	Aor	Prat
1	Kemp ,R (Rian)	1	1	425	0	0	0	1	1	425	0	0	0
1	Kemp ,R (Rian)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
2	Hamann ,L (Louis)	1	0	-425	0	0	0	1	0	-425	0	0	0
2	Hamann ,L (Louis)	1	1157	732	0	0	0	1	1189.1	732	0	0	0
3	Alexander ,K (Keathon)	1	0	-425	0	0	0	1	0	-425	0	0	0
3	Alexander ,K (Keathon)	1	1200	775	0	0	0	1	1200	775	0	0	0
4	Abrahams ,A (Alvin Ernest)	1	0	-425	0	0	0	1	0	-425	0	0	0
4	Abrahams ,A (Alvin Ernest)	1	1161.2	736.2	0	0	0	1	1200	736.2	0	0	0
5	Grohban ,H (Hendricks Paulo)	1	1	425	0	0	0	1	1	425	0	0	0
5	Grohban ,H (Hendricks Paulo)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
6	Janse Van Rensburg ,D (Daniel)	1	0	-425	0	0	0	1	0	-425	0	0	0
6	Janse Van Rensburg ,D (Daniel)	1	1217.2	792.2	0	0	0	1	1224.4	792.2	0	0	0
7	Arries ,M (Manon)	1	0	-425	0	0	0	1	0	-425	0	0	0
7	Arries ,M (Manon)	1	1231.3	806.3	0	0	0	1	1246.1	806.3	0	0	0
8	Cornelius ,W (Wayden)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Cornelius ,W (Wayden)	1	1200	775	0	0	0	1	1200	775	0	0	0
9	Arendse ,C (Cadence)	1	0	-425	0	0	0	1	0	-425	0	0	0
9	Arendse ,C (Cadence)	1	1158.1	733.1	0	0	0	1	1130.5	733.1	0	0	0
10	Kramer ,R (Ruan)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Kramer ,R (Ruan)	1	1232.5	807.5	0	0	0	1	1221.2	807.5	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Johnson, M (Michaela)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms